Ios 从UIActionSheet Popover中删除填充

我正在创建一个UIActionSheet，允许用户拍摄或选择照片。有人能告诉我为什么它显示的和苹果的不一样吗？这是iPad的，所以我没有声明取消按钮

UIActionSheet *actionSheet = [[UIActionSheet alloc] init];
actionSheet.delegate = self;
[actionSheet addButtonWithTitle:NSLocalizedString(@"choosePhotoPopoverButton", @"Choose Photo - Get a photo from the album.")];
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
    [actionSheet addButtonWithTitle:NSLocalizedString(@"takePhotoPopoverButton", @"Take Photo - Use camera to take photo.")];
}
[actionSheet showFromRect:self.imageView.frame inView:self animated:YES];

UIActionSheet *actionSheet = [[UIActionSheet alloc] init];
actionSheet.delegate = self;
[actionSheet addButtonWithTitle:NSLocalizedString(@"choosePhotoPopoverButton", @"Choose Photo - Get a photo from the album.")];
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
    [actionSheet addButtonWithTitle:NSLocalizedString(@"takePhotoPopoverButton", @"Take Photo - Use camera to take photo.")];
}
actionSheet.cancelButtonIndex = [actionSheet addButtonWithTitle:(@"Cancel");
[actionSheet showFromRect:self.imageView.frame inView:self animated:YES];

苹果的联系人应用程序。利润微薄。行与行之间的行

我的工作应用程序示例。底部有额外的填充物。行与行之间没有行

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感谢您的帮助。

您仍然需要声明一个取消按钮。在iPad上运行时，它只会忽略“取消”按钮，而在iPhone上则会使用它

UIActionSheet *actionSheet;

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
    actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate: self cancelButtonTitle:@"" destructiveButtonTitle:nil otherButtonTitles:@"Take Photo",@"Camera", nil];
}else{
    actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate: self cancelButtonTitle:@"" destructiveButtonTitle:nil otherButtonTitles:@"Take Photo", nil];
}

[actionSheet showFromRect:self.imageView.frame inView:self animated:YES];

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我想保持使用addButtonWithTitle的灵活性，但不幸的是在iPad上，它没有在底部按钮上方显示一行。这就成功了。如果有取消按钮，iPad会自动删除最后一个按钮。如果你在iPad上，你不需要一个取消按钮

UIActionSheet *actionSheet = [[UIActionSheet alloc] init];
actionSheet.delegate = self;
[actionSheet addButtonWithTitle:NSLocalizedString(@"choosePhotoPopoverButton", @"Choose Photo - Get a photo from the album.")];
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
    [actionSheet addButtonWithTitle:NSLocalizedString(@"takePhotoPopoverButton", @"Take Photo - Use camera to take photo.")];
}
[actionSheet showFromRect:self.imageView.frame inView:self animated:YES];

UIActionSheet *actionSheet = [[UIActionSheet alloc] init];
actionSheet.delegate = self;
[actionSheet addButtonWithTitle:NSLocalizedString(@"choosePhotoPopoverButton", @"Choose Photo - Get a photo from the album.")];
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
    [actionSheet addButtonWithTitle:NSLocalizedString(@"takePhotoPopoverButton", @"Take Photo - Use camera to take photo.")];
}
actionSheet.cancelButtonIndex = [actionSheet addButtonWithTitle:(@"Cancel");
[actionSheet showFromRect:self.imageView.frame inView:self animated:YES];

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啊！这似乎可以解释这一点。谢谢